Massimo Pigliucci is an Italian-American philosopher and biologist who is professor of philosophy at the City College of New York, former co-host of the Rationally Speaking Podcast, and former editor in chief for the online magazine Scientia Salon. He is a critic of pseudoscience and creationism, and an advocate for secularism and science education.

Pseudoscience consists of statements, beliefs, or practices that claim to be both scientific and factual but are incompatible with the scientific method. Pseudoscience is often characterized by contradictory, exaggerated or unfalsifiable claims; reliance on confirmation bias rather than rigorous attempts at refutation; lack of openness to evaluation by other experts; absence of systematic practices when developing hypotheses; and continued adherence long after the pseudoscientific hypotheses have been experimentally discredited. It is not the same as junk science.